Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

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Details

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Title

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1		-RS485-LN – RS485 to LoRaWAN Converter
	1	+RS485-LN – RS485 to LoRaWAN Converter User Manual

Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

Content

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1		-(% style="text-align:center" %)
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
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21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25	25	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29	29	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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38	38
39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	77	+(% style="color:#037691" %)**Hardware System:**
46	46
47	47	* STM32L072CZT6 MCU
48	48	* SX1276/78 Wireless Chip
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50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
	85	+(% style="color:#037691" %)**Interface for Model:**
54	54
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
	90	+(% style="color:#037691" %)**LoRa Spec:**
59	59
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
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74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	109	+* Packet engine up to 256 bytes with CRC
78	78
79		-
80		-
81	81	== 1.3 Features ==
82	82
	113	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	115	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
85	85	* AT Commands to change parameters
86	86	* Remote configure parameters via LoRa Downlink
87	87	* Firmware upgradable via program port
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89	89	* Support Modbus protocol
90	90	* Support Interrupt uplink (Since hardware version v1.2)
91	91
92		-
93		-
94	94	== 1.4 Applications ==
95	95
	125	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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100	100	* Smart Cities
101	101	* Smart Factory
102	102
103		-
104		-
105	105	== 1.5 Firmware Change log ==
106	106
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107	107	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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109	109
	139	+
110	110	== 1.6 Hardware Change log ==
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112	112	(((
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114	114	v1.2: Add External Interrupt Pin.
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116	116	v1.0: Release
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121	121
122	122	= 2. Power ON Device =
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124	124	(((
125	125	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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131	131	Once there is power, the RS485-LN will be on.
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133	133
134		-[[image:1653268091319-405.png]]
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138	138
139	139	= 3. Operation Mode =
140	140
	179	+
141	141	== 3.1 How it works? ==
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144	144	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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148	148
149	149	== 3.2 Example to join LoRaWAN network ==
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151	151	Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
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153		-[[image:1653268155545-638.png||height="334" width="724"]]
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156	156	(((
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158	158	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
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161	161	(((
162	162	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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163	163	)))
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165		-[[image:1653268227651-549.png||height="592" width="720"]]
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167	167	(((
168		-The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
	216	+The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
	217	+
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169	169	)))
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172		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	222	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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180		-[[image:1652953462722-299.png]]
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184	184	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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187	187	(((
188		-Add APP EUI in the application.
	241	+**Add APP EUI in the application.**
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192		-[[image:image-20220519174512-1.png]]
	245	+(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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196		-[[image:image-20220519174512-3.png||height="556" width="724"]]
	249	+(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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198		-[[image:image-20220519174512-4.png]]
	251	+(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
199	199
	253	+
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	255	+
200	200	You can also choose to create the device manually.
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202		-[[image:1652953542269-423.png||height="710" width="723"]]
	258	+(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
203	203
204		-Add APP KEY and DEV EUI
205	205
206		-[[image:1652953553383-907.png||height="514" width="724"]]
207	207
	262	+**Add APP KEY and DEV EUI**
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	265	+
	266	+
	267	+
209	209	(((
210		-**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	269	+(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
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211	211	)))
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213		-[[image:1652953568895-172.png||height="232" width="724"]]
	274	+(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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	277	+
216	216	== 3.3 Configure Commands to read data ==
217	217
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218	218	(((
219	219	(((
220		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	283	+(((
	284	+There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	285	+
	286	+
221	221	)))
	288	+)))
222	222
223	223	(((
224		-(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
	291	+(((
	292	+(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
	293	+)))
225	225
	295	+
226	226
227	227	)))
228	228	)))
229	229
230		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	300	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
231	231
	302	+
232	232	To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
233	233
234		-(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235		-|(% style="width:128px" %)(((
	305	+
	306	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	307	+|=(% style="width: 110px;" %)(((
236	236	**AT Commands**
237		-)))|(% style="width:305px" %)(((
	309	+)))|=(% style="width: 190px;" %)(((
238	238	**Description**
239		-)))|(% style="width:346px" %)(((
	311	+)))|=(% style="width: 190px;" %)(((
240	240	**Example**
241	241	)))
242		-|(% style="width:128px" %)(((
	314	+|(% style="width:110px" %)(((
243	243	AT+BAUDR
244		-)))|(% style="width:305px" %)(((
	316	+)))|(% style="width:190px" %)(((
245	245	Set the baud rate (for RS485 connection). Default Value is: 9600.
246		-)))|(% style="width:346px" %)(((
	318	+)))|(% style="width:190px" %)(((
247	247	(((
248	248	AT+BAUDR=9600
249	249	)))
...	...	@@ -252,11 +252,11 @@
252	252	Options: (1200,2400,4800,14400,19200,115200)
253	253	)))
254	254	)))
255		-|(% style="width:128px" %)(((
	327	+|(% style="width:110px" %)(((
256	256	AT+PARITY
257		-)))|(% style="width:305px" %)(((
	329	+)))|(% style="width:190px" %)(((
258	258	Set UART parity (for RS485 connection)
259		-)))|(% style="width:346px" %)(((
	331	+)))|(% style="width:190px" %)(((
260	260	(((
261	261	AT+PARITY=0
262	262	)))
...	...	@@ -265,9 +265,9 @@
265	265	Option: 0: no parity, 1: odd parity, 2: even parity
266	266	)))
267	267	)))
268		-|(% style="width:128px" %)(((
	340	+|(% style="width:110px" %)(((
269	269	AT+STOPBIT
270		-)))|(% style="width:305px" %)(((
	342	+)))|(% style="width:190px" %)(((
271	271	(((
272	272	Set serial stopbit (for RS485 connection)
273	273	)))
...	...	@@ -275,7 +275,7 @@
275	275	(((
276	276
277	277	)))
278		-)))|(% style="width:346px" %)(((
	350	+)))|(% style="width:190px" %)(((
279	279	(((
280	280	AT+STOPBIT=0 for 1bit
281	281	)))
...	...	@@ -289,910 +289,1335 @@
289	289	)))
290	290	)))
291	291
292		-
293		-
294	294	=== 3.3.2 Configure sensors ===
295	295
	366	+
296	296	(((
297	297	(((
298		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
	369	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
	370	+
	371	+
299	299	)))
300	300	)))
301	301
302		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
303		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
304		-|AT+CFGDEV|(% style="width:418px" %)(((
	375	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	376	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	377	+|AT+CFGDEV|(% style="width:110px" %)(((
	378	+(((
305	305	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	380	+)))
306	306
	382	+(((
307	307	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	384	+)))
308	308
	386	+(((
309	309	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
310		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	388	+)))
	389	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
311	311
	391	+=== 3.3.3 Configure read commands for each sampling ===
312	312
313	313
314		-=== 3.3.3 Configure read commands for each sampling ===
	394	+(((
	395	+During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
315	315
	397	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	398	+
	399	+This section describes how to achieve above goals.
	400	+
	401	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	402	+
	403	+
	404	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	405	+
	406	+
	407	+~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
	408	+
	409	+2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
	410	+
	411	+3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
	412	+
	413	+
	414	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	415	+
	416	+Below are examples for the how above AT Commands works.
	417	+
	418	+
	419	+(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
	420	+
	421	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	422	+|(% style="width:496px" %)(((
	423	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	424	+
	425	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	426	+
	427	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	428	+)))
	429	+
	430	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	431	+
	432	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	433	+
	434	+
	435	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	436	+
	437	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	438	+|(% style="width:510px" %)(((
	439	+**AT+DATACUTx=a,b,c**
	440	+
	441	+* **a: length for the return of AT+COMMAND**
	442	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	443	+* **c: define the position for valid value.  **
	444	+)))
	445	+
	446	+**Examples:**
	447	+
	448	+
	449	+* (% style="color:#037691" %)**Grab bytes**
	450	+
	451	+(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	452	+
	453	+
	454	+
	455	+* (% style="color:#037691" %)**Grab a section**
	456	+
	457	+(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	458	+
	459	+
	460	+
	461	+* (% style="color:#037691" %)**Grab different sections**
	462	+
	463	+(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	464	+
	465	+
	466	+
	467	+)))
	468	+
	469	+=== 3.3.4 Compose the uplink payload ===
	470	+
	471	+
316	316	(((
317		-RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
	473	+Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
	474	+
	475	+
318	318	)))
319	319
320	320	(((
321		-During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
	479	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	480	+
	481	+
322	322	)))
323	323
324	324	(((
325		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	485	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
326	326	)))
327	327
328	328	(((
329		-This section describes how to achieve above goals.
	489	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
330	330	)))
331	331
332	332	(((
333		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	493	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	494	+
	495	+
334	334	)))
335	335
	498	+[[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
	499	+
	500	+
	501	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	502	+
	503	+
	504	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	505	+
	506	+Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	507	+
	508	+
	509	+1. PAYVER: Defined by AT+PAYVER
	510	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	511	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	512	+1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
	513	+
	514	+(% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	515	+
	516	+
	517	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	518	+
	519	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	520	+
	521	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	522	+
	523	+DATA3=the rest of Valid value of RETURN10= **30**
	524	+
	525	+
	526	+(% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
	527	+
	528	+
	529	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	530	+
	531	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	532	+
	533	+ * For US915 band, max 11 bytes for each uplink.
	534	+
	535	+ ~* For all other bands: max 51 bytes for each uplink.
	536	+
	537	+
	538	+(% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	539	+
	540	+(% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
	541	+
	542	+
	543	+
	544	+Below are the uplink payloads:
	545	+
	546	+
	547	+(% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	548	+
	549	+
	550	+
	551	+=== 3.3.5 Uplink on demand ===
	552	+
	553	+
	554	+Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
	555	+
	556	+(% style="color:blue" %)**Downlink control command:**
	557	+
	558	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	559	+
	560	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	561	+
	562	+
	563	+
	564	+=== 3.3.6 Uplink on Interrupt ===
	565	+
	566	+
	567	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	568	+
	569	+
	570	+(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	571	+
	572	+Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
	573	+
	574	+
	575	+
	576	+== 3.4 Uplink Payload ==
	577	+
	578	+
	579	+(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	580	+
	581	+(% title="Click and drag to resize" %)​
	582	+
	583	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	584	+
	585	+
	586	+
	587	+== 3.5 Configure RS485-LN via AT or Downlink ==
	588	+
	589	+
336	336	(((
337		-**Command from RS485-BL to Sensor:**
	591	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
338	338	)))
339	339
340	340	(((
341		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	595	+There are two kinds of Commands:
342	342	)))
343	343
	598	+* (((
	599	+(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	600	+)))
	601	+
	602	+* (((
	603	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	604	+)))
	605	+
344	344	(((
345		-**Handle return from sensors to RS485-BL**:
	607	+
346	346	)))
347	347
	610	+
	611	+
	612	+=== 3.5.1 Common Commands ===
	613	+
	614	+
	615	+They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	616	+
	617	+
	618	+
	619	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	620	+
	621	+
	622	+Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
	623	+
	624	+
	625	+(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]]
	626	+
	627	+(% title="Click and drag to resize" %)​
	628	+
	629	+The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
	630	+
	631	+
	632	+
	633	+=== 3.5.3 Sensor related commands ===
	634	+
	635	+
	636	+
	637	+
	638	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	639	+
	640	+
348	348	(((
349		-After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
	642	+This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
350	350	)))
351	351
352		-* (((
353		-**AT+DATACUT**
	645	+(((
	646	+* (% style="color:#037691" %)**AT Command**
	647	+
	648	+(((
	649	+(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
354	354	)))
	651	+)))
355	355
356	356	(((
357		-When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
	654	+
358	358	)))
359	359
360	360	* (((
361		-**AT+SEARCH**
	658	+(% style="color:#037691" %)**Downlink Payload**
362	362	)))
363	363
364	364	(((
365		-When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
	662	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
366	366	)))
367	367
368	368	(((
369		-**Define wait timeout:**
	666	+Where:
370	370	)))
371	371
	669	+* (((
	670	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	671	+)))
	672	+* (((
	673	+NN: The length of RS485 command
	674	+)))
	675	+* (((
	676	+XX XX XX XX: RS485 command total NN bytes
	677	+)))
	678	+* (((
372	372	(((
373		-Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
	680	+YY: How many bytes will be uplink from the return of this RS485 command,
374	374	)))
375	375
	683	+* (((
	684	+if YY=0, RS485-LN will execute the downlink command without uplink;
	685	+)))
	686	+* (((
	687	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	688	+)))
	689	+* (((
	690	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	691	+)))
	692	+)))
	693	+
376	376	(((
377		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	695	+
	696	+
	697	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
378	378	)))
379	379
380		-**Examples:**
	700	+(((
	701	+To connect a Modbus Alarm with below commands.
	702	+)))
381	381
382		-Below are examples for the how above AT Commands works.
	704	+* (((
	705	+The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	706	+)))
383	383
384		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	708	+* (((
	709	+The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
	710	+)))
385	385
386		-(% border="1" class="table-bordered" %)
387		-|(((
388		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	712	+(((
	713	+
389	389
390		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	715	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	716	+)))
391	391
392		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	718	+(((
	719	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
393	393	)))
394	394
395	395	(((
396		-For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	723	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
397	397	)))
398	398
399	399	(((
400		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	727	+A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
401	401	)))
402	402
403	403	(((
404		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	731	+
405	405	)))
406	406
407		-(% border="1" class="table-bordered" %)
408		-|(((
409		-**AT+SEARCHx=aa,xx xx xx xx xx**
	734	+(((
	735	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	736	+)))
410	410
411		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
412		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
	738	+(((
	739	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	740	+)))
413	413
	742	+(((
414	414
415	415	)))
416	416
417		-**Examples:**
	746	+(((
	747	+(((
	748	+RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
	749	+)))
418	418
419		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	751	+
	752	+)))
420	420
421		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	754	+(((
	755	+ (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	756	+)))
422	422
423		-The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
424	424
425		-[[image:1653269403619-508.png]]
426	426
427		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
428	428
429		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
	761	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
430	430
431		-Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
432	432
433		-[[image:1653269438444-278.png]]
	764	+(((
	765	+This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	766	+)))
434	434
435		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	768	+(((
	769	+* (% style="color:#037691" %)**AT Command:**
436	436
437		-|(((
438		-**AT+DATACUTx=a,b,c**
	771	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
439	439
440		-* **a: length for the return of AT+COMMAND**
441		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
442		-* **c: define the position for valid value.  **
	773	+
443	443	)))
444	444
445		-Examples:
	776	+* (((
	777	+(% style="color:#037691" %)**Downlink Payload:**
	778	+)))
446	446
447		-* Grab bytes:
	780	+(((
	781	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	782	+)))
448	448
449		-[[image:1653269551753-223.png||height="311" width="717"]]
	784	+(((
	785	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	786	+)))
450	450
451		-* Grab a section.
452	452
453		-[[image:1653269568276-930.png||height="325" width="718"]]
	789	+**1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
454	454
455		-* Grab different sections.
456	456
457		-[[image:1653269593172-426.png||height="303" width="725"]]
	792	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
458	458
459		-(% style="color:red" %)**Note:**
460	460
461		-AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
462	462
463		-Example:
	796	+**2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.**
464	464
465		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
466	466
467		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	799	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
468	468
469		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
470	470
471		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
472	472
473		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
474	474
475		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	804	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
476	476
477		-[[image:1653269618463-608.png]]
478	478
479		-=== 3.3.4 Compose the uplink payload ===
	807	+(((
	808	+AT+COMMANDx or AT+DATACUTx
	809	+)))
480	480
481	481	(((
482		-Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
	812	+These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
483	483	)))
484	484
485	485	(((
486		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	816	+
487	487	)))
488	488
	819	+* (((
	820	+(% style="color:#037691" %)**AT Command:**
	821	+)))
	822	+
	823	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	824	+
	825	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	826	+
	827	+
	828	+* (((
	829	+(% style="color:#037691" %)**Downlink Payload:**
	830	+)))
	831	+
489	489	(((
490		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	833	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	834	+
	835	+
491	491	)))
492	492
493	493	(((
494		-Final Payload is
	839	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	840	+
	841	+
495	495	)))
496	496
497	497	(((
498		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	845	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
499	499	)))
500	500
501	501	(((
502		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	849	+Where:
503	503	)))
504	504
505		-[[image:1653269759169-150.png||height="513" width="716"]]
	852	+* (((
	853	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	854	+)))
	855	+* (((
	856	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	857	+)))
	858	+* (((
	859	+LL:  The length of AT+COMMAND or AT+DATACUT command
	860	+)))
	861	+* (((
	862	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	863	+)))
	864	+* (((
	865	+YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
	866	+)))
506	506
507		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	868	+(((
	869	+
508	508
509		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	871	+**Example:**
	872	+)))
510	510
511		-Final Payload is
	874	+(((
	875	+(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
	876	+)))
512	512
513		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	878	+(((
	879	+(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
	880	+)))
514	514
515		-1. Battery Info (2 bytes): Battery voltage
516		-1. PAYVER (1 byte): Defined by AT+PAYVER
517		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
518		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
519		-1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
	882	+(((
	883	+(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
	884	+)))
520	520
521		-[[image:1653269916228-732.png||height="433" width="711"]]
522	522
523	523
524		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
525	525
526		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	889	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
527	527
528		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
529	529
530		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	892	+(((
	893	+(% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	894	+)))
531	531
532		-Below are the uplink payloads:
	896	+(((
	897	+This command is valid since v1.3 firmware version
	898	+)))
533	533
534		-[[image:1653270130359-810.png]]
	900	+(((
	901	+AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
	902	+)))
535	535
	904	+(((
	905	+
	906	+)))
536	536
537		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	908	+(((
	909	+**Example:**
	910	+)))
538	538
539		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	912	+* (((
	913	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	914	+)))
	915	+* (((
	916	+AT+COMMAND1= 01 03 00 10 00 08,1  ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
	917	+)))
	918	+* (((
	919	+AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
540	540
541		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	921	+
	922	+)))
542	542
543		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	924	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
544	544
545		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	926	+(% title="Click and drag to resize" %)​
546	546
547		-=== 3.3.5 Uplink on demand ===
	928	+(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
548	548
549		-Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
550	550
551		-Downlink control command:
552	552
553		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
554	554
555		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	933	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
556	556
557	557
	936	+(((
	937	+Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
	938	+)))
558	558
559		-1.
560		-11.
561		-111. Uplink on Interrupt
	940	+(((
	941	+Default value: 0, range:  0 ~~ 65 seconds
	942	+)))
562	562
563		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	944	+(((
	945	+* (% style="color:#037691" %)** AT Command:**
564	564
565		-AT+INTMOD=0  Disable Interrupt
	947	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	948	+)))
566	566
567		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	950	+(((
	951	+
568	568
569		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	953	+**Example:**
	954	+)))
570	570
571		-AT+INTMOD=3  Interrupt trigger by rising edge.
	956	+(((
	957	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	958	+)))
572	572
	960	+(((
	961	+
	962	+)))
573	573
574		-1.
575		-11. Uplink Payload
	964	+* (((
	965	+(% style="color:#037691" %)** Downlink Payload:**
	966	+)))
576	576
577		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
578		-|Value|(((
579		-Battery(mV)
	968	+(((
	969	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	970	+)))
580	580
581		-&
	972	+(((
	973	+
582	582
583		-Interrupt _Flag
584		-)))|(((
585		-PAYLOAD_VER
	975	+**Example:**
	976	+)))
586	586
587		-
588		-)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
	978	+(((
	979	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	980	+)))
589	589
590		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
591	591
592	592
593		-function Decoder(bytes, port) {
594	594
595		-~/~/Payload Formats of RS485-BL Deceive
	985	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
596	596
597		-return {
598	598
599		- ~/~/Battery,units:V
	988	+(((
	989	+Define to use one uplink or multiple uplinks for the sampling.
	990	+)))
600	600
601		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
	992	+(((
	993	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
602	602
603		- ~/~/GPIO_EXTI
	995	+
	996	+)))
604	604
605		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	998	+(((
	999	+* (% style="color:#037691" %)** AT Command:**
606	606
607		- ~/~/payload of version
	1001	+(% style="color:#4472c4" %)** AT+DATAUP=0**
608	608
609		- Pay_ver:bytes[2],
	1003	+(% style="color:#4472c4" %)** AT+DATAUP=1**
610	610
611		- };
	1005	+
	1006	+)))
612	612
613		- }
	1008	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
614	614
	1010	+Each uplink is sent to the server at 20-second intervals when segmented.
615	615
616	616
	1013	+* (((
	1014	+(% style="color:#037691" %)** Downlink Payload:**
	1015	+)))
617	617
	1017	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
618	618
	1019	+(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
619	619
620	620
621		-TTN V3 uplink screen shot.
	1022	+* (((
	1023	+(% style="color:#037691" %)** AT Command:**
	1024	+)))
622	622
623		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1026	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
624	624
625		-1.
626		-11. Configure RS485-BL via AT or Downlink
627	627
628		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1029	+* (((
	1030	+(% style="color:#037691" %)** Downlink Payload:**
	1031	+)))
629	629
630		-There are two kinds of Commands:
	1033	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
631	631
632		-* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
	1035	+Each uplink is sent to the server at 20-second intervals when segmented.
633	633
634		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
635	635
636		-1.
637		-11.
638		-111. Common Commands:
639	639
640		-They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
641	641
	1040	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
642	642
643		-1.
644		-11.
645		-111. Sensor related commands:
646	646
647		-==== Choose Device Type (RS485 or TTL) ====
	1043	+(((
	1044	+Ask device to send an uplink immediately.
	1045	+)))
648	648
649		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1047	+* (((
	1048	+(% style="color:#037691" %)** AT Command:**
	1049	+)))
650	650
651		-* AT Command
	1051	+(((
	1052	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1053	+)))
652	652
653		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1055	+(((
	1056	+
	1057	+)))
654	654
655		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1059	+* (((
	1060	+(% style="color:#037691" %)** Downlink Payload:**
	1061	+)))
656	656
	1063	+(((
	1064	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1065	+)))
657	657
658		-* Downlink Payload
659	659
660		-**0A aa**     à same as AT+MOD=aa
661	661
662	662
	1070	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
663	663
664		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
665	665
666		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1073	+(((
	1074	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
667	667
668		-* AT Command
	1076	+
	1077	+)))
669	669
670		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	1079	+* (((
	1080	+(% style="color:#037691" %)** AT Command:**
	1081	+)))
671	671
672		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1083	+(((
	1084	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1085	+)))
673	673
	1087	+(((
	1088	+
674	674
	1090	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1091	+)))
675	675
676		-* Downlink Payload
	1093	+(((
	1094	+Example screen shot after clear all RS485 commands.
	1095	+)))
677	677
678		-Format: A8 MM NN XX XX XX XX YY
	1097	+(((
	1098	+
	1099	+)))
679	679
680		-Where:
	1101	+(((
	1102	+The uplink screen shot is:
	1103	+)))
681	681
682		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
683		-* NN: The length of RS485 command
684		-* XX XX XX XX: RS485 command total NN bytes
685		-* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
	1105	+(% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
686	686
687		-**Example 1:**
688	688
689		-To connect a Modbus Alarm with below commands.
	1108	+* (((
	1109	+(% style="color:#037691" %)** Downlink Payload:**
	1110	+)))
690	690
691		-* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	1112	+(((
	1113	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1114	+)))
692	692
693		-* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
694	694
695		-So if user want to use downlink command to control to RS485 Alarm, he can use:
696	696
697		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
698	698
699		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	1119	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
700	700
701		-A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
702	702
	1122	+(((
	1123	+Set the Rs485 serial communication parameters:
	1124	+)))
703	703
704		-**Example 2:**
	1126	+(((
	1127	+(% style="color:#037691" %)**AT Command:**
	1128	+)))
705	705
706		-Check TTL Sensor return:
	1130	+(((
	1131	+* Set Baud Rate
	1132	+)))
707	707
708		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1134	+(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
709	709
710	710
	1137	+(((
	1138	+* Set UART Parity
	1139	+)))
711	711
	1141	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
712	712
713		-==== Set Payload version ====
714	714
715		-This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	1144	+(((
	1145	+* Set STOPBIT
	1146	+)))
716	716
717		-* AT Command:
	1148	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
718	718
719		-AT+PAYVER: Set PAYVER field = 1
720	720
	1151	+(((
	1152	+(% style="color:#037691" %)**Downlink Payload:**
	1153	+)))
721	721
722		-* Downlink Payload:
	1155	+(((
	1156	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1157	+)))
723	723
724		-0xAE 01   à Set PAYVER field =  0x01
	1159	+(((
	1160	+**Example:**
	1161	+)))
725	725
726		-0xAE 0F   à Set PAYVER field =  0x0F
	1163	+* (((
	1164	+A7 01 00 60  same as AT+BAUDR=9600
	1165	+)))
	1166	+* (((
	1167	+A7 01 04 80  same as AT+BAUDR=115200
	1168	+)))
727	727
	1170	+(((
	1171	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1172	+)))
728	728
729		-==== Set RS485 Sampling Commands ====
	1174	+(((
	1175	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1176	+)))
730	730
731		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
732	732
733		-These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
734	734
735	735
736		-* AT Command:
737	737
738		-AT+COMMANDx: Configure RS485 read command to sensor.
	1182	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
739	739
740		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1184	+(((
	1185	+
	1186	+)))
741	741
742		-AT+SEARCHx: Configure search command
	1188	+* (((
	1189	+(% style="color:#037691" %)** AT Command:**
	1190	+)))
743	743
	1192	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
744	744
745		-* Downlink Payload:
	1194	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
746	746
747		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
748	748
749		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
750	750
751		-Format: AF MM NN LL XX XX XX XX YY
752	752
753		-Where:
	1199	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
754	754
755		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
756		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
757		-* LL: The length of AT+COMMAND or AT+DATACUT command
758		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
759		-* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
760	760
761		-Example:
	1202	+* (((
	1203	+(% style="color:#037691" %)** AT Command:**
	1204	+)))
762	762
763		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	1206	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
764	764
765		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1208	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
766	766
767		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
768	768
769	769
770		-0xAB downlink command can be used for set AT+SEARCHx
771	771
772		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1213	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
773	773
774		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
775		-* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
776	776
777		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1216	+* (((
	1217	+(% style="color:#037691" %)** AT Command:**
	1218	+)))
778	778
	1220	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
779	779
780		-==== Fast command to handle MODBUS device ====
	1222	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
781	781
782		-AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
783	783
784		-This command is valid since v1.3 firmware version
785	785
786	786
787		-AT+MBFUN has only two value:
	1227	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
788	788
789		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
790	790
791		-AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
	1230	+* (((
	1231	+(% style="color:#037691" %)** AT Command:**
	1232	+)))
792	792
793		-* AT+MBFUN=0: Disable Modbus fast reading.
	1234	+ (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
794	794
795		-Example:
	1236	+ (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
796	796
797		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
798		-* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
799		-* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
800	800
801		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
	1239	+* (((
	1240	+(% style="color:#037691" %)** Downlink Payload:**
	1241	+)))
802	802
	1243	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
803	803
804		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
805	805
806	806
807		-* Downlink Commands:
808	808
809		-A9 aa -à Same as AT+MBFUN=aa
	1248	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
810	810
811	811
812		-==== RS485 command timeout ====
	1251	+* (((
	1252	+(% style="color:#037691" %)** AT Command:**
	1253	+)))
813	813
814		-Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
	1255	+(% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
815	815
816		-Default value: 0, range:  0 ~~ 5 seconds
817	817
	1258	+Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
818	818
819		-* AT Command:
820	820
821		-AT+CMDDLaa=hex(bb cc)
	1261	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
822	822
823		-Example:
824	824
825		-**AT+CMDDL1=1000** to send the open time to 1000ms
826	826
	1265	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
827	827
828		-* Downlink Payload:
829	829
830		-0x AA aa bb cc
	1268	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
831	831
832		-Same as: AT+CMDDLaa=hex(bb cc)
833	833
834		- Example:
	1271	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
835	835
836		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
837	837
838	838
839		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
840	840
841		-Define to use one uplink or multiple uplinks for the sampling.
	1276	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
842	842
843		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
844	844
845		-* AT Command:
	1279	+(((
	1280	+* (% style="color:#037691" %)**Downlink Payload:**
846	846
847		-AT+DATAUP=0
	1282	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1283	+)))
848	848
849		-AT+DATAUP=1
850	850
	1286	+Example：
851	851
852		-* Downlink Payload:
853	853
854		-0xAD 00   à Same as AT+DATAUP=0
	1289	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
855	855
856		-0xAD 01   à Same as AT+DATAUP=1
857	857
858	858
859		-==== Manually trigger an Uplink ====
860	860
861		-Ask device to send an uplink immediately.
	1294	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
862	862
863		-* Downlink Payload:
864	864
865		-0x08 FF, RS485-BL will immediately send an uplink.
	1297	+* (((
	1298	+(% style="color:#037691" %)** AT Command:**
	1299	+)))
866	866
	1301	+(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
867	867
868		-==== Clear RS485 Command ====
	1303	+(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
869	869
870		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1305	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
871	871
872	872
873		-* AT Command:
	1308	+* (((
	1309	+(% style="color:#037691" %)**Downlink Payload:**
	1310	+)))
874	874
875		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1312	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
876	876
877		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1314	+[[image:image-20220824144240-1.png]]
878	878
879		-Example screen shot after clear all RS485 commands.
880	880
881	881
	1318	+== 3.6 Listening mode for RS485 network ==
882	882
883		-The uplink screen shot is:
884	884
885		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1321	+(((
	1322	+This feature support since firmware v1.4
	1323	+)))
886	886
	1325	+(((
	1326	+RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
887	887
888		-* Downlink Payload:
	1328	+
	1329	+)))
889	889
890		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1331	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
891	891
	1333	+(% title="Click and drag to resize" %)​
892	892
893		-==== Set Serial Communication Parameters ====
	1335	+(((
	1336	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1337	+)))
894	894
895		-Set the Rs485 serial communication parameters:
	1339	+(((
	1340	+
	1341	+)))
896	896
897		-* AT Command:
	1343	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1344	+|=(% style="width: 100px;" %)(((
	1345	+**Command example**
	1346	+)))|=(% style="width: 400px;" %)(((
	1347	+**Function**
	1348	+)))
	1349	+|(% style="width:100px" %)(((
	1350	+AT+RXMODE=1,10
	1351	+)))|(% style="width:400px" %)(((
	1352	+Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
	1353	+)))
	1354	+|(% style="width:100px" %)(((
	1355	+AT+RXMODE=2,500
	1356	+)))|(% style="width:400px" %)(((
	1357	+Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
	1358	+)))
	1359	+|(% style="width:100px" %)(((
	1360	+AT+RXMODE=0,0
	1361	+)))|(% style="width:400px" %)(((
	1362	+Disable listening mode. This is the default settings.
	1363	+)))
	1364	+|(% style="width:100px" %)(((
	1365	+
	1366	+)))|(% style="width:400px" %)(((
	1367	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1368	+)))
898	898
899		-Set Baud Rate:
	1370	+(((
	1371	+
900	900
901		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1373	+(% style="color:#037691" %)**Downlink Command:**
	1374	+)))
902	902
	1376	+(((
	1377	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1378	+)))
903	903
904		-Set UART parity
	1380	+(((
	1381	+
	1382	+)))
905	905
906		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1384	+(((
	1385	+**Example**:
	1386	+)))
907	907
	1388	+(((
	1389	+The RS485-LN is set to AT+RXMODE=2,1000
	1390	+)))
908	908
909		-Set STOPBIT
	1392	+(((
	1393	+There is a two Modbus commands in the RS485 network as below:
	1394	+)))
910	910
911		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1396	+(((
	1397	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1398	+)))
912	912
	1400	+(((
	1401	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1402	+)))
913	913
914		-* Downlink Payload:
	1404	+(((
	1405	+RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
915	915
916		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1407	+
	1408	+)))
917	917
918		-Example:
	1410	+(((
	1411	+(% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1412	+)))
919	919
920		-* A7 01 00 60   same as AT+BAUDR=9600
921		-* A7 01 04 80  same as AT+BAUDR=115200
	1414	+(((
	1415	+
	1416	+)))
922	922
923		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1418	+(((
	1419	+(((
	1420	+(% style="color:red" %)**Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.**
	1421	+)))
	1422	+)))
924	924
925		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
926	926
927	927
928		-==== Control output power duration ====
	1426	+== 3.7 Buttons ==
929	929
930		-User can set the output power duration before each sampling.
931	931
932		-* AT Command:
	1429	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1430	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1431	+|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
	1432	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1433	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
933	933
934		-Example:
	1435	+== 3.8 LEDs ==
935	935
936		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
937	937
938		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
	1438	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1439	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1440	+|**PWR**|Always on if there is power
	1441	+|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
939	939
	1443	+= 4. Case Study =
940	940
941		-* LoRaWAN Downlink Command:
942	942
943		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1446	+User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
944	944
945		-07 02 aa bb  Same as AT+3V3T=(aa bb)
946	946
947	947
	1450	+= 5. Use AT Command =
948	948
949	949
950		-1.
951		-11. Buttons
	1453	+== 5.1 Access AT Command ==
952	952
953		-|**Button**|**Feature**
954		-|**RST**|Reboot RS485-BL
955	955
956		-1.
957		-11. +3V3 Output
	1456	+(((
	1457	+RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
958	958
959		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1459	+
	1460	+)))
960	960
961		-The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling.
	1462	+(% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
962	962
963	963
964		-The +3V3 output time can be controlled by AT Command.
965	965
966		-**AT+3V3T=1000**
	1466	+(((
	1467	+In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
967	967
968		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1469	+
	1470	+)))
969	969
	1472	+(% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
970	970
971		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
972	972
	1475	+(((
	1476	+More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
	1477	+)))
973	973
974		-1.
975		-11. +5V Output
976	976
977		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
978	978
979		-The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling.
	1481	+== 5.2 Common AT Command Sequence ==
980	980
981	981
982		-The 5V output time can be controlled by AT Command.
	1484	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
983	983
984		-**AT+5VT=1000**
985	985
986		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
	1487	+If device has not joined network yet:
987	987
	1489	+* (% style="color:#037691" %)**AT+FDR**
	1490	+* (% style="color:#037691" %)**AT+NJM=0**
	1491	+* (% style="color:#037691" %)**ATZ**
988	988
989		-By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
	1493	+(((
	1494	+
990	990
	1496	+If device already joined network:
991	991
	1498	+* (% style="color:#037691" %)**AT+NJM=0**
	1499	+* (% style="color:#037691" %)**ATZ**
992	992
	1501	+
	1502	+)))
993	993
994		-1.
995		-11. LEDs
996	996
997		-|**LEDs**|**Feature**
998		-|**LED1**|Blink when device transmit a packet.
999	999
1000		-1.
1001		-11. Switch Jumper
	1506	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1002	1002
1003		-|**Switch Jumper**|**Feature**
1004		-|**SW1**|(((
1005		-ISP position: Upgrade firmware via UART
1006	1006
1007		-Flash position: Configure device, check running status.
1008		-)))
1009		-|**SW2**|(((
1010		-5V position: set to compatible with 5v I/O.
	1509	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1011	1011
1012		-3.3v position: set to compatible with 3.3v I/O.,
1013		-)))
	1511	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1014	1014
1015		-+3.3V: is always ON
	1513	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1016	1016
1017		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1515	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1018	1018
1019		-1. Case Study
	1517	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1020	1020
1021		-User can check this URL for some case studies.
	1519	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1022	1022
1023		-[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
	1521	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1024	1024
	1523	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1025	1025
	1525	+(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1026	1026
	1527	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1027	1027
1028		-1. Use AT Command
1029		-11. Access AT Command
1030	1030
1031		-RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
	1530	+(% style="color:red" %)**Note:**
1032	1032
1033		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1532	+(((
	1533	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1534	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1535	+3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
	1536	+4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1034	1034
	1538	+
	1539	+)))
1035	1035
1036		-In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
	1541	+(% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1037	1037
1038		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1039	1039
1040	1040
	1545	+= 6. FAQ =
1041	1041
1042		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1043	1043
	1548	+== 6.1 How to upgrade the image? ==
1044	1044
1045	1045
1046		-1.
1047		-11. Common AT Command Sequence
1048		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1551	+(((
	1552	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1553	+)))
1049	1049
1050		-If device has not joined network yet:
	1555	+* (((
	1556	+Support new features
	1557	+)))
	1558	+* (((
	1559	+For bug fix
	1560	+)))
	1561	+* (((
	1562	+Change LoRaWAN bands.
	1563	+)))
1051	1051
1052		-AT+FDR
	1565	+(((
	1566	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1567	+)))
1053	1053
1054		-AT+NJM=0
	1569	+(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1055	1055
1056		-ATZ
	1571	+(% title="Click and drag to resize" %)​
1057	1057
	1573	+(((
	1574	+(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1058	1058
1059		-If device already joined network:
	1576	+
	1577	+)))
1060	1060
1061		-AT+NJM=0
	1579	+(((
	1580	+(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
1062	1062
1063		-ATZ
	1582	+
	1583	+)))
1064	1064
1065		-1.
1066		-11.
1067		-111. Single-channel ABP mode (Use with LG01/LG02)
	1585	+(((
	1586	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1068	1068
1069		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1588	+
	1589	+)))
1070	1070
1071		-AT+NJM=0 Set to ABP mode
	1591	+(((
	1592	+(((
	1593	+(((
	1594	+(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
	1595	+)))
	1596	+)))
	1597	+)))
1072	1072
1073		-AT+ADR=0 Set the Adaptive Data Rate Off
1074	1074
1075		-AT+DR=5  Set Data Rate
	1600	+(% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1076	1076
1077		-AT+TDC=60000  Set transmit interval to 60 seconds
1078	1078
1079		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1603	+(% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1080	1080
1081		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1082	1082
1083		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1606	+(% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1084	1084
1085		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1086	1086
1087		-ATZ          Reset MCU
	1609	+(% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1088	1088
1089		-**Note:**
	1611	+(% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1090	1090
1091		-1. Make sure the device is set to ABP mode in the IoT Server.
1092		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1093		-1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1094		-1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1095	1095
1096		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1097	1097
	1615	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1098	1098
1099		-1. FAQ
1100		-11. How to upgrade the image?
1101	1101
1102		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1618	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1103	1103
1104		-* Support new features
1105		-* For bug fix
1106		-* Change LoRaWAN bands.
1107	1107
1108		-Below shows the hardware connection for how to upload an image to RS485-BL:
1109	1109
1110		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1622	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1111	1111
1112		-**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1113	1113
1114		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1625	+The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1115	1115
1116		-**Step3: **Open flashloader; choose the correct COM port to update.
1117	1117
1118	1118
1119		-|(((
1120		-HOLD PRO then press the RST button, SYS will be ON, then click next
1121		-)))
	1629	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1122	1122
1123		-|(((
1124		-Board detected
1125		-)))
1126	1126
1127		-|(((
1128		-
1129		-)))
	1632	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1130	1130
1131		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
	1634	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1132	1132
1133	1133
1134	1134
1135		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
	1638	+== 6.5 Can i use point to point communication for RS485-LN? ==
1136	1136
1137	1137
1138		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
	1641	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1139	1139
1140	1140
1141		-1.
1142		-11. How to change the LoRa Frequency Bands/Region?
1143	1143
1144		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1645	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1145	1145
1146	1146
	1648	+[[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1147	1147
1148		-1.
1149		-11. How many RS485-Slave can RS485-BL connects?
1150	1150
1151		-The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
1152	1152
	1652	+= 7. Trouble Shooting =
1153	1153
1154	1154
	1655	+== 7.1 Downlink doesn't work, how to solve it? ==
1155	1155
1156		-1. Trouble Shooting
1157		-11. Downlink doesn’t work, how to solve it?
1158	1158
1159		-Please see this link for debug:
	1658	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1160	1160
1161		-[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]]
1162	1162
1163	1163
	1662	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1164	1164
1165		-1.
1166		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1167	1167
1168		-It might about the channels mapping. Please see for detail.
	1665	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1169	1169
1170		-[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1171	1171
1172	1172
	1669	+= 8. Order Info =
1173	1173
1174		-1. Order Info
1175	1175
1176		-**Part Number: RS485-BL-XXX**
	1672	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1177	1177
1178		-**XXX:**
	1674	+(% style="color:blue" %)**XXX:**
1179	1179
1180		-* **EU433**: frequency bands EU433
1181		-* **EU868**: frequency bands EU868
1182		-* **KR920**: frequency bands KR920
1183		-* **CN470**: frequency bands CN470
1184		-* **AS923**: frequency bands AS923
1185		-* **AU915**: frequency bands AU915
1186		-* **US915**: frequency bands US915
1187		-* **IN865**: frequency bands IN865
1188		-* **RU864**: frequency bands RU864
1189		-* **KZ865: **frequency bands KZ865
	1676	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1677	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1678	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1679	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1680	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1681	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1682	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1683	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1684	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1685	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1190	1190
1191		-1. Packing Info
	1687	+= 9.Packing Info =
1192	1192
	1689	+
1193	1193	**Package Includes**:
1194	1194
1195		-* RS485-BL x 1
	1692	+* RS485-LN x 1
1196	1196	* Stick Antenna for LoRa RF part x 1
1197	1197	* Program cable x 1
1198	1198
...	...	@@ -1203,9 +1203,68 @@
1203	1203	* Package Size / pcs : 14.5 x 8 x 5 cm
1204	1204	* Weight / pcs : 170g
1205	1205
1206		-1. Support
	1703	+= 10. FCC Caution for RS485LN-US915 =
1207	1207
1208		-* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1209		-* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1210	1210
1211		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1706	+(((
	1707	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1708	+)))
	1709	+
	1710	+(((
	1711	+This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
	1712	+)))
	1713	+
	1714	+(((
	1715	+
	1716	+)))
	1717	+
	1718	+(((
	1719	+(% style="color:red" %)**IMPORTANT NOTE:**
	1720	+)))
	1721	+
	1722	+(((
	1723	+(% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
	1724	+)))
	1725	+
	1726	+(((
	1727	+—Reorient or relocate the receiving antenna.
	1728	+)))
	1729	+
	1730	+(((
	1731	+—Increase the separation between the equipment and receiver.
	1732	+)))
	1733	+
	1734	+(((
	1735	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1736	+)))
	1737	+
	1738	+(((
	1739	+—Consult the dealer or an experienced radio/TV technician for help.
	1740	+)))
	1741	+
	1742	+(((
	1743	+
	1744	+)))
	1745	+
	1746	+(((
	1747	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1748	+)))
	1749	+
	1750	+(((
	1751	+This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
	1752	+)))
	1753	+
	1754	+
	1755	+
	1756	+= 11. Support =
	1757	+
	1758	+
	1759	+* (((
	1760	+Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	1761	+)))
	1762	+* (((
	1763	+Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
	1764	+
	1765	+
	1766	+
	1767	+)))

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